Recaps

Su Chen overheard Corps members gossiping about Genya Shinazugawa eating a demon, then asked Shinobu Kocho whether working with demons troubled her. Shinobu said she could accept it for everyone’s sake, and Su Chen left the Butterfly Mansion troubled by his own demon nature and his inability to protect her.

• Two Corps members told Su Chen that Genya Shinazugawa had been seen eating a demon and taking on a monstrous appearance.
• Su Chen met Shinobu Kocho at the Butterfly Mansion and realized she had encountered Chachamaru.
• Su Chen asked Shinobu whether working with demons was difficult for her, and she said it was acceptable if done for everyone’s sake.
• Su Chen reflected that he was a demon himself and feared another tragedy like Kanae Kocho’s, then left to get some air and think about training.
• Shinobu watched Su Chen leave, puzzled and deep in thought.

Aoi Kanzaki told Shinobu Kocho that the Corps was investigating Su Chen after reports that he had become a demon at the Swordsmith Village. When Su Chen left the Butterfly Mansion and armed people arrived looking for him, Shinobu resolved to find a cure that would turn him back into a human.

• Aoi Kanzaki told Shinobu Kocho that the Corps had investigated Genya Shinazugawa and that witnesses claimed Su Chen had turned into a demon at the Swordsmith Village.
• Aoi recounted the rumors about Su Chen, including that he was a Demon Eater, leaving Shinobu shaken as she struggled to accept that he might be a demon.
• Kiyo, Sumi, and Xiao Caihui reported that Su Chen had left down the mountain and that armed people had arrived asking for him.
• Shinobu suspected Su Chen had left before the visitors could confront him and worried that he might leave the Butterfly Mansion.
• Shinobu declared that she would find a cure for Su Chen and thought of Tamayo as someone who might help.

Su Chen learned Stone Breathing from Gyomei and fused it with the other four basic Breathing Styles in his Memory Palace, creating a style he named Light Breathing. He emerged from his meditation beneath the waterfall as the surrounding snow melted from his rising body heat.

• Shinobu Kocho told Shénqíkù to send the people outside away before heading to her Laboratory.
• Su Chen meditated beneath a waterfall while Gyomei discussed the upcoming training and Su Chen’s reluctance to undergo examinations.
• After learning Stone Breathing from Gyomei, Su Chen entered an epiphany and brought the five basic Breathing Styles together in his Memory Palace.
• Su Chen’s fusion produced a golden Light Dragon that made the Sun Dragon avert its gaze, and he named the new style Light Breathing.
• Su Chen left his Memory Palace and opened his eyes as his rising body heat melted the snow around him.

Su Chen developed Light Breathing while the Demon Slayer Corps prepared its Hashira training and investigated rumors that he was a demon. At the Ubuyashiki Residence, Kagaya Ubuyashiki planned to have Su Chen teach the Corps, and Lady Amane began explaining Kagaya’s apparent recovery to the Stone Hashira.

• Su Chen practiced with his Nichirin Blade, and the Stone Hashira sensed traces of several Breathing Styles in his aura before Su Chen called his style Light Breathing.
• The Corps arranged the Hashira training schedule, leaving Su Chen’s training undecided while he continued studying alone.
• Kagaya Ubuyashiki told Lady Amane and the Stone Hashira that the rumor about Su Chen being a demon might have come from leaked information within the Corps, and said he would investigate.
• Kagaya Ubuyashiki suggested placing Su Chen’s training last and having him lecture the Corps on slaying Upper Ranks.
• The Stone Hashira sensed that Kagaya Ubuyashiki’s vitality had improved, and Lady Amane began explaining the couple’s act to him.

Obanai Iguro visited the Butterfly Mansion under the pretext of getting medicine for Kaburamaru, hoping to learn about Su Chen’s feats and new Breathing Style. He finally encountered Su Chen and asked to see the technique, leaving Kaburamaru’s minor injury untreated.

• Lady Amane told the Stone Hashira that Kagaya Ubuyashiki’s health had improved and that he had awakened a Demon Slayer Mark, and the Stone Hashira promised to investigate the rumors tarnishing Su Chen’s name.
• As the Hashira returned to the Corps’ base, Obanai Iguro went to the Butterfly Mansion, claiming Kaburamaru needed medicine while hoping to ask Su Chen about his new Breathing Style and battles.
• Aoi Kanzaki told Obanai that Su Chen had been training and was rarely at the mansion, and Obanai grew curious about what he was doing.
• Su Chen arrived in the courtyard and said he had been testing a new Breathing Style on the mountain.
• Obanai asked Su Chen to show him the new Breathing Style, then dismissed Kaburamaru’s wound as a minor injury.

Su Chen returned to the Butterfly Mansion and began treating patients, despite the Serpent Hashira urging him to share his combat experience instead. After examining Kaburamaru, Su Chen hinted that Obanai had a condition of his own, leaving Obanai asking what he had discovered.

• Su Chen refused to demonstrate his Breathing Style and went to the treatment room, followed by Aoi Kanzaki and the Serpent Hashira.
• Patients waiting at the Butterfly Mansion speculated that Shinobu Kocho had stopped seeing them because she had been dumped by Su Chen.
• Su Chen took Shinobu Kocho’s place at the consultation desk and began treating the patients.
• The Serpent Hashira told Su Chen to train the Corps instead, but Su Chen insisted that treating patients was also important.
• The Serpent Hashira silenced the complaining patients with his authority, then sat down and presented Kaburamaru for treatment.
• Su Chen said Kaburamaru was not ill and suggested that the Serpent Hashira had a condition, prompting Obanai to ask what he had found.

Obanai Iguro asked Su Chen for advice on winning Mitsuri Kanroji’s heart, choosing that dream over healing his face or Kaburamaru’s injuries. Su Chen learned from Aoi Kanzaki that Shinobu Kocho was developing a demon-to-human reagent because she wanted Su Chen to turn back.

• Su Chen recognized Obanai Iguro’s old chin injury and teased him about being lovesick, prompting Obanai to ask for advice.
• Obanai offered to register his Hashira title under the Butterfly Mansion as payment, then chose advice about his dream over treatment for his face.
• Su Chen told Obanai to confess, and Obanai left wondering whether Mitsuri Kanroji might like him too.
• Aoi Kanzaki asked who Obanai planned to confess to, then assured Su Chen that Shinobu Kocho only cared for him.
• Aoi told Su Chen that Shinobu was working with Tamayo on a reagent to turn demons back into humans because she wanted Su Chen to turn back.

Muichiro Tokito awoke at the Butterfly Mansion, and Su Chen helped loosen the lock on his memories while assuring him they would return gradually. Su Chen stayed at the mansion after Kanao Tsuyuri asked him not to leave, then accepted her suggestion to teach Breathing Styles during Hashira training; the chapter ended with him standing outside the gates and activating the Time Domain.

• Aoi Kanzaki told Su Chen that she and the others trusted him, even if he was a demon, and Kiyo announced that Tokito had awakened.
• Su Chen questioned Muichiro Tokito, used the Time Domain to restore his strength, and explained that Tokito's locked memories would return slowly.
• Kanao Tsuyuri hugged Su Chen and asked if he was leaving because of rumors that he was a demon, and he promised to stay at the Butterfly Mansion.
• Su Chen continued treating patients and guiding Kanao's sword practice, and Kanao suggested that he teach the Hashira trainees suitable Breathing Styles.
• Su Chen agreed to Kanao's suggestion, then left the Butterfly Mansion gates and activated the Time Domain.

Su Chen’s body began evolving under Muzan’s blood, leaving him craving blood and struggling to control his strength. Kanao Tsuyuri stopped him from leaving the Butterfly Mansion, but a sudden surge in his blood made him realize Hashira Training had begun.

• Su Chen examined his rapidly changing body and realized Muzan’s blood was driving a painful evolution that left him craving blood and oxygen.
• Su Chen tried to leave the Butterfly Mansion so no one would see him lose control, but Kanao Tsuyuri embraced him.
• Su Chen pushed Kanao away and warned her to stay back as his strength and hunger threatened to overwhelm him.
• Kanao Tsuyuri cried and begged Su Chen not to leave, and her presence calmed him enough to promise he would stay.
• Su Chen’s blood began boiling again, and he asked Kanao Tsuyuri whether Hashira Training had started; she said it had begun two days earlier.

Su Chen sensed Muzan’s presence at the Demon Slayer Corps’ base and realized Muzan had arrived earlier than expected. Muzan entered Kagaya Ubuyashiki’s residence, where Kagaya and Amane waited to face him.

• Su Chen sensed a powerful demon nearby and concluded that Muzan had come to the Demon Slayer Corps’ base.
• Su Chen noticed Muzan’s presence was approaching the Ubuyashiki residence and wondered whether events had been brought forward.
• Kagaya Ubuyashiki and Lady Amane reaffirmed their resolve as they waited for Muzan.
• Muzan passed through the mist and entered Kagaya Ubuyashiki’s residence.
• Kagaya Ubuyashiki faced Muzan and named him as the demon their family had hunted for a thousand years.

Kagaya Ubuyashiki confronted Muzan, taunting him about his fear of Su Chen and revealing that he believed Su Chen would kill him. As Muzan grew angry and demanded to know where Su Chen was, a switch clicked inside the room.

• Muzan mocked Kagaya Ubuyashiki’s failing health, but Kagaya said he had survived beyond his doctors’ prediction and would live on to see Muzan die.
• Kagaya Ubuyashiki explained that his clan had been cursed because Muzan was born from their bloodline, and he credited Su Chen with curing him.
• Kagaya Ubuyashiki revealed that Su Chen was the Demon Slayer Corps’ hope, prompting Muzan to demand to know where he was.
• Muzan admitted that he considered Su Chen a threat because his talent reminded him of Yoriichi Tsugikuni, then angrily insisted Su Chen was not worthy of comparison.
• Kagaya Ubuyashiki teased Muzan for being afraid and said Su Chen was simply the Demon Slayer Corps’ first Su Chen.
• A switch clicked inside the room.

Muzan survived the explosion at the Ubuyashiki estate, where Kagaya Ubuyashiki and his family died, and the Hashira gathered to attack him. Su Chen watched from a distance as Muzan appeared unconcerned, and Shinobu Kocho heard a faint stringed instrument just as the attacks reached him.

• Muzan realized Kagaya Ubuyashiki had filled the estate with explosives, and the blast engulfed Muzan, Kagaya, and Lady Amane.
• The Hashira arrived to find the estate burning and mourned Oyakata-sama, while Su Chen reached the scene and learned that Kagaya had sacrificed himself to lure Muzan out.
• Su Chen spotted the Stone Hashira fighting Muzan, with Tamayo stabbing the Demon King, and realized the final battle was beginning.
• Tanjiro Kamado and the assembled Hashira launched attacks using ten Breathing Styles as Tamayo confronted Muzan about her drug.
• Muzan sneered at the Hashira's assault, and Shinobu Kocho noticed his confidence before hearing a faint stringed instrument.

The Demon Slayer Corps members and Su Chen were pulled into the Infinity Castle, where Shinobu Kocho and Tokito explored separate areas and encountered signs of danger. Tanjiro tried to pursue Muzan, but Giyu Tomioka stopped him and said the Young Master was surveying the terrain.

• Windows opened beneath the Hashira, Corps members, Akaza, and Su Chen, pulling them into the Infinity Castle.
• Shinobu Kocho woke in the castle, searched for companions or enemies, and found a room filled with dead women and a figure holding an iron fan.
• Tokito explored the castle, was struck by a wooden beam into a vast space, and recognized the figure waiting there as his ancestor.
• After Muzan banished him twice, Tanjiro chased after him but Giyu Tomioka told him to follow orders.
• Giyu Tomioka pointed out a Dish Crow and explained that the Young Master had begun surveying the terrain.

Tanjiro and Giyu Tomioka fought Akaza in the Infinity Castle while Shinobu Kocho faced Doma and pierced his eye with a poisoned blade. Akaza insisted he was no longer Muzan’s ally, but he unleashed Destructive Death after the Hashira kept attacking him, and Tanjiro ordered him to stand down.

• Tanjiro and Giyu Tomioka found Akaza in the Infinity Castle and attacked him, despite Akaza’s insistence that Su Chen had already killed him and that he was no longer Muzan’s ally.
• Shinobu Kocho confronted Doma over her sister’s death and, using her Demon Slayer Mark, pierced his palm and eye with her Nichirin Blade.
• Doma’s eye and part of his head melted from Shinobu’s wisteria poison, but he regenerated and moved away from her.
• Tanjiro and Giyu Tomioka overwhelmed Akaza, whose strength had dropped after losing Muzan’s curse, while Tanjiro still treated him as an enemy because he remained a demon.
• Akaza unleashed Destructive Death, blasting through a distant wall, and Tanjiro shouted at him to stand down.

Su Chen arrived in the Infinity Castle and told Tanjiro and Giyu Tomioka to leave Akaza to him, then set off toward a distant cry after noticing Shinobu Kocho was in danger. Shinobu, badly wounded and unable to defeat Doma, prepared to use her final move.

• Su Chen appeared before Akaza, and Tanjiro and Giyu Tomioka arrived shortly afterward.
• Su Chen told Tanjiro and Giyu Tomioka that Akaza was not their enemy and sent them to help Tokito.
• Su Chen refused Akaza's offer to share Tamayo's plan and said he would kill Muzan himself.
• Akaza followed Su Chen as he flew through the Infinity Castle, while Su Chen sensed Akaza's blood reacting strangely to him.
• Su Chen heard someone murmur, "Doma, die!" and hurried toward the sound with Akaza following.
• Shinobu Kocho, gravely injured in Doma's pavilion, decided to use her final move.

Kanao Tsuyuri and Inosuke joined Shinobu Kocho against Doma, but Doma overwhelmed them and forced Shinobu to prepare to sacrifice herself. Su Chen arrived, saved Shinobu, and beheaded Doma, but as Su Chen struggled to recover, Akaza suddenly rushed toward Shinobu with killing intent.

• Kanao Tsuyuri and Inosuke attacked Doma, but his Blood Demon Art trapped everyone in ice.
• Shinobu Kocho charged at Doma and prepared to sacrifice herself by poisoning him.
• Su Chen appeared, caught Shinobu Kocho, treated her wounds, and told her to rest.
• Akaza fought Doma and called for Su Chen when Doma formed ice spears to kill him.
• Su Chen used Light Breathing: Light Ray Slash to melt Doma's ice and behead him.
• Akaza suddenly rushed toward Shinobu Kocho, and Su Chen sensed his killing intent.

Su Chen saw Muzan reactivate his curse and seize control of Akaza, who was about to kill Shinobu Kocho. He unleashed his powers to fight Akaza and established a connection that drew Muzan into his Memory Palace, where Muzan came face-to-face with him.

• Su Chen realized Muzan had reactivated Akaza’s curse as Akaza prepared to strike the badly injured Shinobu Kocho.
• Su Chen recalled his bond with Shinobu Kocho, embraced his demonic nature, and used four skills to slam Akaza into a wall.
• Su Chen silenced Muzan, expanded his domain, and called out to Akaza as he fought for control of his body.
• Su Chen exploited Akaza’s hesitation, attacked his heart, and used their connection to drain Muzan’s strength.
• Muzan was pulled into the Memory Palace, where he recognized the approaching Su Chen.

Su Chen killed Muzan inside his mental domain, but his body began to disintegrate until the fighting spirit of his allies and Shinobu Kocho’s pleas helped him recover. After completing his mission and eliminating every demon, Su Chen awakened beside Shinobu in the Butterfly Mansion.

• Su Chen used the Sun Dragon and Light Dragon to torment Muzan with memories of Yoriichi Tsugikuni and fear of Su Chen, then annihilated Muzan’s soul.
• Su Chen struggled to suppress his body’s demonic instincts as it began developing its own consciousness and falling apart.
• Shinobu Kocho, Kanao Tsuyuri, and the other allies sent their fighting spirit into Su Chen, slowing his body’s disintegration.
• Shinobu Kocho and Kanao Tsuyuri cried out for Su Chen to return as the Infinity Castle collapsed and the demons broke down.
• Su Chen’s mind cleared, and he fulfilled his mission with no demons remaining in the world.
• Su Chen awakened beside Shinobu Kocho in the Butterfly Mansion, where she welcomed him home.